1426401 has 6 divisors (see below), whose sum is σ = 2060370. Its totient is φ = 950928.

The previous prime is 1426393. The next prime is 1426427. The reversal of 1426401 is 1046241.

It can be written as a sum of positive squares in only one way, i.e., 720801 + 705600 = 849^2 + 840^2 .

It is not a de Polignac number, because 1426401 - 2³ = 1426393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1426471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79236 + ... + 79253.

It is an arithmetic number, because the mean of its divisors is an integer number (343395).

2^1426401 is an apocalyptic number.

It is an amenable number.

1426401 is a deficient number, since it is larger than the sum of its proper divisors (633969).

1426401 is a wasteful number, since it uses less digits than its factorization.

1426401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158495 (or 158492 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1426401 is about 1194.3203087949. The cubic root of 1426401 is about 112.5677221877.

The spelling of 1426401 in words is "one million, four hundred twenty-six thousand, four hundred one".